diff --git a/nhf/touhou/houjuu_nue/joints.py b/nhf/touhou/houjuu_nue/joints.py
index e9951ec..fb0a2b7 100644
--- a/nhf/touhou/houjuu_nue/joints.py
+++ b/nhf/touhou/houjuu_nue/joints.py
@@ -255,7 +255,7 @@ class Beam:
     spine_length: float = 10.0
     total_height: float = 50.0
 
-    hole_diam: float = 8.0
+    hole_diam: float = 6.0
     # distance between the centres of the two holes
     hole_dist: float = 24.0
 
diff --git a/nhf/touhou/houjuu_nue/wing.py b/nhf/touhou/houjuu_nue/wing.py
index 4834080..3550a6b 100644
--- a/nhf/touhou/houjuu_nue/wing.py
+++ b/nhf/touhou/houjuu_nue/wing.py
@@ -58,6 +58,8 @@ class WingProfile(Model):
     wrist_joint: ElbowJoint = field(default_factory=lambda: ElbowJoint(
         disk_joint=DiskJoint(
             movement_angle=45,
+            radius_disk=13.0,
+            radius_housing=15.0,
         ),
         flip=True,
     ))